It's a PC gamers dream! What started out as a rumor when the game was found on Steam's registry just yesterday, it has been announced that Alan Wake is indeed coming to PC.
In 2005, the game was originally going to be on the PC. Throughout the years, the Xbox 360 and PS3 were added to that, until finally the game only came out on the Xbox 360. Finally, the PC gamers dream has come true.
For more details: http://www.nave360.com/alan-wake-officially-coming-to-pc/